51 to 75 of 510 Permanent API Design Jobs

Manager - AI Tech Transformation - TC - FS

Location
Greater London, England, United Kingdom
help to build a better working world. The opportunity We are seeking a Manager, AI Architect specializing in generative AI to lead the design and delivery of GenAI solutions for our clients. This is a hands‐on delivery and technical management role: you will own the architecture … your solutions run reliably in production. You will work closely with client teams and communicate technical decisions clearly to project stakeholders. Your key responsibilities Design and Delivery of Engagements Own the architecture and technical delivery of a GenAI solution area or workstream, from design through production rollout. Lead ...

Technical & Solution Architect (Distributed Ledger / Regulated Financial Services)

Location
Greater London, England, United Kingdom
hands-on technical leadership position in the making. You will work across product management, engineering, and client-facing discussions to document and evolve the design of a distributed ledger-based post-trade platform operating within regulated financial services. You will initially contribute as our technical documentation lead while progressively … taking ownership of system-level architecture, solution design, and technical direction. This role is ideal for someone who wants to: Move from senior technical writer or senior engineer to architect; Work on real financial market infrastructure problems; Combine deep technical thinking with business context; Shape a product ...

Product Manager – Global Card Issuing Platform (BaaS)

Location
Greater London, England, United Kingdom
infrastructure that allows clients to launch card programs anywhere in the world through a single integration. You will be responsible for a unified Global API and SDK suite that abstracts the complexity of regional payment networks. Whether a client is launching in Europe, North America, or APAC, your product … will provide a consistent, white-label experience. You will drive both the technical \"how\" (API/SDK design) and the strategic \"where\" (global expansion and regional issuing setups). What you’ll do Unified Global API Strategy: Design and maintain a single, polymorphic API architecture ...

Senior Java backend Developer

Hiring Organisation
KnackHook LLC
Location
Texas, United States
Employment Type
Any
Salary
USD Annual
Java Backend Developer for our client in Santa Clara, CA. Looking for banking/financial experience Techstack- React Spring, Spring boot, Rest Api, spring security, ES, Oracle/Postgress/Some Relational DB, Kafka, Splunk, Unit testing, Caching, AWS Elastic Search, Redis, Job description: 12+ years of progressive development … microservice development experience with Spring Boot projects. Hands-on Experience with Java/J2EE, Restful Web services, relational databases. Experience and exposure to API gateways, API design and API coding. Experience implementing solutions using Agile delivery methodologies, Scrum preferred Ability to analyze and trouble shoot production ...

Senior Software Engineer, Embedded UI

Location
Cambridge, England, United Kingdom
feature or project simply because that problem needs to be solved and shipped. But that individual must work together with different engineering teams, UI design, product teams, and business leadership to make things happen, which means that engineers succeed here because they can maintain that independent spirit and motivation … inventing the world of streaming media. What is the role? As a Senior Software Engineer on the OS UI/SDK team, you will design, develop, and deliver engaging platform features — including screensavers, static and dynamic wallpapers, trivia, featured experiences, and AI-driven content initiatives — that reach millions ...

Senior Software Development Engineer

Location
Greater London, England, United Kingdom
with a growth mindset. We value our team culture and work together from the office three times a week. In this role, you will: Design, build, and maintain robust full stack applications and scalable services across multiple domains, applying deep technical expertise and architectural skills. Lead … development process, including system design, API design, and data modelling, ensuring quality and maintainability of solutions. Collaborate across engineering, product, and business teams to define requirements, deliver impactful features, and drive technology strategy. Mentor and guide engineers, fostering best practices in coding, testing, and operational excellence within ...

Software Development Engineer II

Location
Greater London, England, United Kingdom
Expedia Group brands power global travel for everyone, everywhere. We design cutting-edge tech to make travel smoother and more memorable, and we create groundbreaking solutions for our partners. Our diverse, vibrant, and welcoming community is essential in driving our success. Why Join Us? To shape the future … great experience to delight our customers. Our goal is to enhance every traveler's experience and make it better! In this role, you will: Design, develop, and maintain high-throughput, low-latency distributed backend services that deliver efficient, optimal pricing solutions at scale. Implement robust caching mechanisms to enhance ...

Java Software Engineer

Location
Manchester, England, United Kingdom
global growth trends driven by digital adoption and regulatory expansion across lottery and iGaming markets. Well, what about the team? Join our dynamic Sports API team (named Matchday), where you\'ll be at the forefront of creating our Online Sportsbook APIs that underpin the Bally Bet experience. … online entertainment! So, what will you be doing? Develop product features, updates and capabilities. Use TDD methodologies to produce high quality well documented code. Design and develop customer focussed solutions. Understand the goals and business objectives of your team and domain. Use agile methodologies and work together to meet ...

Technical Product Manager

Hiring Organisation
Creditsafe
Location
Cardiff, Wales, United Kingdom
looking for a Technical Product Manager to join the API team, driving the product direction. This is a highly technical role, the ideal candidate will have worked in a technical role previously moving in to Product or have a passion for development and understand the structure of API … current and future customer needs (including readiness for AI agents and LLM-based consumption). Key to the role will be working with the API Architect and development team to ensure we are building the right thing at the right time. You will work closely with engineering, product, marketing ...

Software Engineer - Core Networking

Location
Greater London, England, United Kingdom
part of influencing the strategic direction for connectivity with Neo4j and the drivers together with our product managers. You will be leading the design of new features and improvements to the protocol whilst taking on feedback from other experts and stakeholders within the company. You will then implement these … interest in: Network development (binary protocol specs like Bolt , Frontend/Backend , MongoDB Wire Protocol ) Network packet analysis (e.g., Wireshark) Distributed system design API design Netty Customer experience and developer community interaction Concurrency and asynchronous programming You may have also worked with some of: Database management systems ...

Senior Android Engineer - Jetpack Compose & API Design

Location
Greater London, England, United Kingdom
This mid-level role requires hands-on experience with Android apps, Kotlin, and collaboration across multiple surfaces and teams. The engineer will contribute to API design and developer tooling while advancing Google’s Android platform initiatives. The position emphasizes in-person interviews and opportunities to mentor junior teammates ...

backend developer for developer documentation

Location
Greater London, England, United Kingdom
code reviews, pair programming, and architecture discussions; Collaborate cross-functionally with other Apple teams to integrate tools and systems seamlessly; Write detailed architecture and design proposals; Identify areas for continuous improvement; Mentor other engineers; Contribute to architecture discussions, code reviews, and proposals. Требования Experience shipping high-quality, performant … reliable web applications; Passion for developing products and features; Ability to discuss technical trade-offs across system architecture, database design, API design, and infrastructure; Continuous learning attitude focused on improving personal and team capabilities; Nice to have: BS/MS in Computer Science, Computer Engineering, Informatics ...

Staff Backend Software Engineer

Location
City of Edinburgh, Scotland, United Kingdom
join the Product Platform team, which builds foundational components and cross-functional capabilities for our ecosystem. In this role, you will lead the design and implementation of critical API services powering our financial data ecosystem while modernizing our architecture to fuel European expansion. Key responsibilities and strategic impact … United Kingdom from the first day of employment. Please note that visa sponsorship is not available for this role. What You’ll Do Design, develop, and implement robust API services to support our rapidly growing European customer base. Lead architecture designs and product roadmap creation. Research and drive ...

Director Data & Analytics API Experience - Data Services JBLE1 NI

Hiring Organisation
CME Technology Support Services Ltd
Location
Belfast, UK
Director Data & Analytics API Experience - Data Services Background: CME Group runs some of the world's largest and most important trading venues, including derivatives exchanges, FX/FI platforms. The trading participants include leading investment banks, hedge funds, proprietary trading firms, investment managers, and retail traders, as well … stakeholders such as independent software vendors (ISVs) and data redistributors. To support our unique data and analytics products, we are now building a unified API-first distribution framework, simplifying consumption and value extraction. The Role: We are seeking a key stakeholder for the CMEG External Data-Analytics (DA) APIs ...

Full Stack Engineer

Location
Greater London, England, United Kingdom
work alongside architects, product stakeholders and delivery partners to ship software that brokers and analysts use every day.**Key Responsibilities:*** **Build Across the Stack:** Design, build and ship features end to end, from APIs and services through to responsive, accessible user interfaces.* **Cloud Native Delivery:** Develop and run cloud … usable, performant ways for brokers and analysts.* **AI-Enabled Development:** Build AI-enabled product features using patterns such as retrieval-augmented generation, tool and API integration, evaluation and human-in-the-loop design.* **AI-Assisted Engineering:** Use AI-assisted engineering tools such as Claude Code or Claude Cowork ...

Software Engineer (API / Integration / AWS)

Location
United Kingdom
Software Engineer API's and Integration | Java/TypeScript | AWS | APIs Permanent, Market+ Salary and Bonus Location: UK Remote, Home-Based We're looking for an API Software Engineer to join a growing engineering team responsible for building and evolving a critical API platform sitting between customer … enjoys working on APIs, integrations and cloud-native platforms , and wants to play a key role in the evolution from a mature Java-based API platform to a modern TypeScript architecture . The platform is already live and being used by major third parties, with the next phase focused ...

Senior Solutions Consultant

Location
Greater London, England, United Kingdom
with Account Executives, Customer Success Managers, and Service Delivery to solve complex identity challenges for enterprise customers, leading efforts from the discovery and solution design through to evaluation for prospects and existing customers. You’ll translate technical and business requirements into scalable solutions, lead technical engagements, and ensure customers … Advise on best practices across identity, compliance, fraud, risk and integrations, adapting your approach to different customer contexts and levels of technical depth Strong API expertise (REST, API design, OAuth, API keys, JSON/XML) with the ability to translate complexity into clear, actionable solutions Comfortable ...

BTP Integration Architect (SAP)

Hiring Organisation
Vbeyond
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
govern the end-to-end integration strategy for the S/4HANA Bluefield migration, ensuring alignment with enterprise architecture principles. Architect BTP Solutions: Design and architect robust integration scenarios using the full suite of SAP BTP services, with a heavy focus on SAP Integration Suite (Cloud Integration/… API Management, and Event Mesh. Govern Technical Design: Lead design authority sessions to review and approve all integration patterns, ensuring they are standard, reusable, and fit for purpose. Bluefield Migration Expertise: Provide expert guidance on the unique integration challenges of a Bluefield (system conversion) migration, including ...

Mid-Level Full-Stack Software Engineer

Location
Greater London, England, United Kingdom
Full-Stack Software Engineer with strong experience in C#/.NET Core and modern front-end technologies (React, JavaScript/TypeScript, HTML, CSS) to design, develop, and maintain robust APIs and user interfaces for our enterprise applications. The ideal candidate will be passionate about clean code, scalable architecture … high quality products. Exposure to modern AI tools and services (such as GitHub Copilot or APIs from providers like Anthropic) is beneficial. You Will: Design, develop, and maintain RESTful APIs using .NET Core. Work with data from SQL (MS-SQL server) and NoSQL (MongoDb) databases and external APIs. Ensure ...

Enterprise Software Architect

Location
Bromley, England, United Kingdom
enterprise and partner ecosystems. The position also plays a key role in shaping industry best practices and representing the organisation externally. Enterprise & Ecosystem Architecture Design and oversee the implementation of enterprise‐wide software architecture, spanning internal platforms, cloud environments, and external partner ecosystems Develop “big picture” architectural frameworks … adherence to security, compliance, regulatory, and quality standards Identify and mitigate long‐term architectural risks (e.g., vendor lock‐in, scalability constraints, regulatory exposure) Technical Design & Solution Development Conduct research, analyse data, gather requirements, and define end‐to‐end solutions Create architectural artefacts representing system functions, integrations, and user interfaces ...

Technology support I

Location
Greater London, England, United Kingdom
stability routines to identify recurring interruption patterns and support validated remediation actions aligned to resiliency and security expectations. Execute creative LLM-assisted software solutions; design, develop, and troubleshoot LLM-powered applications and services (e.g., retrieval augmented generation, agent workflows, structured extraction, classification) with a willingness to think beyond routine … assisted microservices, synchronous and asynchronous inference pipelines (streaming where appropriate), deterministic fallbacks, circuit breakers, and observability for reliability in production. Produce architecture and design artifacts, deliver model cards, system/data lineage, RAG/agent reference architectures, prompt libraries and versioning strategies, evaluation plans, and control evidence ensuring design ...

Lead Azure Engineer

Location
Sheffield, England, United Kingdom
Title: Azure Engineer This role leads the design and delivery of cloud-native, full stack products on Microsoft Azure, running on Azure Kubernetes Service (AKS). You will be hands‐on across the stack while setting technical direction, strengthening engineering standards, and ensuring solutions are secure, resilient, observable … full stack delivery across React (TypeScript) front-end applications and Java/Python back‐end services, including microservices and APIs. Own cloud‐native solution design for AKS‐based platforms, defining service boundaries, resilience patterns, scaling approaches, deployment strategies, and operational readiness. Design, build, and operate back‐end services ...

Senior Software Engineer

Location
Reading, England, United Kingdom
Engineering Lead, and fellow engineers to look after the shared in‐house components consumed by other development squads — including auth, audit, developer portal, and API gateway. You’ll be joining us at a pivotal moment! We're transitioning to a product‐driven culture where your voice and expertise will … networking) Focuses on usability, adoption, reliability, and long‐term evolution As a Senior Software Engineer, you will combine technical depth, product thinking, and systems design to ensure these shared services are robust, scalable and developer‐friendly. Product & Ownership Design, build and evolve shared application services used across multiple ...

TypeScript / AWS Software Engineer

Location
United Kingdom
Software Engineer – APIs & Integration | TypeScript | AWS | REST APIs Permanent | Market+ Salary + Bonus UK Remote | Home-Based We're looking for an experienced API Software Engineer to join a growing engineering team building and evolving a critical API platform that sits between customer-facing applications, third parties … Lead and wider technical teams. Designing, developing and maintaining REST APIs used by internal and external customers. Building new functionality using TypeScript and modern API development practices. Developing new API endpoints and services as the platform continues to evolve. Building integrations between external applications, third-party systems ...

AWS Solution Architect

Location
Cambridge, England, United Kingdom
Summary Solution Architect AWS | Microservices & Event-Driven Architecture Cambridge - Hybrid - 2 days The Opportunity We're looking for an experienced Solution Architect to design and lead the implementation of scalable, cloud-native systems on AWS. You'll work across engineering, product and business stakeholders to define architecture for distributed … business goals, run architecture reviews and threat modelling sessions, and own the technical roadmap across multiple product domains. Lead service decomposition using Domain-Driven Design - defining bounded contexts, inter-service contracts, and REST/GraphQL/gRPC APIs - and set patterns for resilience (circuit breakers, retries, bulkheads) and observability ...